When Martinez and sterling reject Vice President Jarvis' input, he turns to an unlikely ally. Meanwhile, Senator Lewis reports the results of her blood test program to Martinez, and warns of a likely sleeper. Sophia and her people try to find the superweapon, while Dempsey confronts Sean and Vicky.

Recap

Sleeper Herbert Mills breaks into a lab to remove a frozen core sample from storage. He begins to analyze it as a FBI team closes in outside. Herbert is analyzing the ice when he spots the agents on the security monitors, and calls Sophia. She tells him to destroy the files, insisting that he knows what he has to do. Herbert turns off the freezers, letting the frozen samples melt, and then starts deleting the computer files. The FBI agents break in and Herbert leaps out the window to his death rather than let himself be captured...